A bore finishing device

Abstract

This utility model discloses an internal hole grinding device, belonging to the technical field of motor processing equipment. It includes an automotive motor housing and a support frame movably mounted on the automotive motor housing for supporting it. A grinding structure, arranged on the support frame, is used to grind the internal hole of the automotive motor housing. A linkage structure, arranged on the grinding structure, controls the rotation of the grinding components within the grinding structure. In use, the automotive motor housing is placed on the support frame, and a grinding rod is aligned with the internal hole of the automotive motor housing. A lifting electric push rod is used to control the grinding rod to descend into the internal hole. Activating the drive motor causes the grinding rod to rotate circumferentially within the internal hole. The friction between the grinding rod and the internal hole achieves the grinding operation on the internal hole of the automotive motor housing. Furthermore, the engagement of hemispherical gear one and hemispherical gear two allows the grinding rod to rotate simultaneously during circumferential motion, achieving all-around grinding of the internal hole surface of the motor housing, improving the uniformity and efficiency of the grinding process.

Description

Technical Field

[0001] This utility model relates to the field of motor processing equipment technology, specifically to an internal hole grinding device. Background Technology

[0002] Grinding the inner hole of the automotive motor housing plays a crucial role in automobile manufacturing and maintenance. By grinding the inner hole of the motor housing, surface unevenness and defects can be removed, making the inner hole surface smoother, thereby reducing the frictional resistance during motor operation and improving the efficiency and performance of the motor.

[0003] Chinese Patent Publication No. CN220388864U discloses a tube blank inner hole grinding machine, including a base, two support columns spaced apart on the right side of the top surface of the base, the top of the two support columns are connected to a beam column, a lower clamp is provided on the top surface of the base in front of the two support columns, a first upper clamp is fixed on the front side of the support column near the left side, a second upper clamp is movably provided on the front side of the beam column through a transverse moving component, the transverse moving component is used to adjust the distance between the second upper clamp and the first upper clamp to adapt to clamping and fixing tubes of different lengths, and a grinding mechanism for grinding the inner ring of the tube is provided on the left side of the top surface of the base.

[0004] In the aforementioned prior art, the grinding operation of the inner hole of the tubular material can be achieved by controlling the movement and rotation of the grinding seat. However, the grinding angle of the grinding device is singular. When grinding the inner hole of the car motor housing, some inner holes of the car motor housing have a certain degree of inclination. The singular angle of the grinding rod cannot ensure the tight contact between the grinding seat and the inner hole surface, resulting in uneven grinding. Utility Model Content

[0005] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide an internal hole grinding device to solve the problem mentioned in the background art that the grinding seat has a single grinding angle and cannot ensure that the grinding seat is tightly fitted to the inclined internal hole surface of the automobile motor housing.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An internal hole grinding device, comprising:

[0008] Automotive motor housing;

[0009] A support frame, movably mounted on the automotive motor housing, is used to support the automotive motor housing;

[0010] The grinding structure, arranged on the support frame, is used for grinding the inner hole of the automotive motor housing;

[0011] A linkage structure, arranged on the grinding structure, is used to control the rotation of the grinding components of the grinding structure;

[0012] An angle adjustment structure is arranged on the grinding structure to adjust the angle of the grinding structure.

[0013] Preferably, the grinding structure includes:

[0014] The lifting electric push rod is located above the support frame;

[0015] The support rod is located on the output end of the lifting electric push rod;

[0016] The rotating frame is rotatably mounted on the support rod.

[0017] Both connecting rods are rotatably mounted on the rotating frame;

[0018] The connecting seat is rotatably mounted between the two connecting rods;

[0019] The grinding rod is rotatably mounted below the connecting seat;

[0020] The drive assembly, located on the rotating frame, is used to control the rotation of the rotating frame.

[0021] Preferably, the driving component includes:

[0022] The mounting bracket is fixedly fitted onto the support rod;

[0023] The drive motor is positioned above the mounting bracket;

[0024] The linkage gear is located at the output end of the drive motor;

[0025] The driven gear is located above the rotating frame and meshes with the linkage gear for transmission.

[0026] Preferably, the grinding structure further includes a fixing ring, which is fixedly sleeved on the support rod and rotatably installed inside the rotating frame to limit the rotation position of the rotating frame.

[0027] Preferably, the linkage structure includes:

[0028] One hemispherical gear is fixedly sleeved on one end of the support rod;

[0029] Hemispherical gear two is rotatably mounted on one side of the connecting seat, and hemispherical gear two meshes with hemispherical gear one;

[0030] The connecting shaft is located between the hemispherical gear and the grinding rod.

[0031] Preferably, the angle adjustment structure includes:

[0032] The linkage slide is slidably mounted on the support rod;

[0033] The linkage rod is rotatably mounted on one side of the linkage slide, and one end of the linkage rod is rotatably mounted on the connecting rod;

[0034] The connecting ring is rotatably mounted below the linkage slide.

[0035] An auxiliary electric push rod, with its output end located on the connecting ring, is used to control the lifting and lowering movement of the connecting ring;

[0036] The mounting base is fixedly sleeved on the support rod and arranged below the auxiliary electric push rod to support the auxiliary electric push rod.

[0037] A flipping component, arranged on the connector, is used to control the flipping of the connector.

[0038] Preferably, the flipping component includes:

[0039] The central shaft is arranged on the rotating frame and rotatably installed inside the connecting rod, serving as the fulcrum for the rotation of the connecting rod;

[0040] The linkage shaft is located on one side of the connecting seat and is rotatably mounted on one end of the connecting rod;

[0041] The movable gear is located at one end of the linkage shaft;

[0042] An arc-shaped toothed plate is arranged on one side of the rotating frame, and the arc-shaped toothed plate meshes with the movable gear;

[0043] The central shaft and the hemispherical gear are located on the same axis.

[0044] Preferably, the angle adjustment structure further includes:

[0045] An annular groove is formed inside the linkage slide;

[0046] A limiting ring is arranged on one side of the connecting ring, and the limiting ring is rotatably installed inside the annular groove.

[0047] The beneficial effects of this utility model are as follows:

[0048] (1) By placing the car motor housing on the support frame, aligning the grinding rod with the inner hole of the car motor housing, and then using the lifting electric push rod to control the grinding rod to descend into the inner hole, the grinding rod can be driven to rotate in the inner hole by turning on the drive motor. The grinding rod can be used to perform grinding operation on the inner hole of the car motor housing by friction between the grinding rod and the inner hole. Furthermore, by using the cooperation of hemispherical gear one and hemispherical gear two, the grinding rod can rotate while rotating in the circular motion, thereby achieving all-round grinding of the inner hole surface of the motor housing, improving the uniformity and efficiency of grinding.

[0049] (2) This utility model can adjust the angle between the grinding rod and the second hemispherical gear by controlling the extension and retraction of the output end of the auxiliary electric push rod. By adjusting the angle of the grinding rod, it can better fit the inclined surface or complex shape of the inner hole of the car motor housing, so as to adapt to different types of inner holes. When the angle of the second hemispherical gear changes, it can maintain the meshing state with the first hemispherical gear, so that the grinding rod can still achieve the self-rotation effect after the angle changes. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 A schematic diagram of the structure of an internal hole grinding device provided in an embodiment of this utility model;

[0052] Figure 2 A schematic diagram of the support rod structure of an internal hole grinding device provided in an embodiment of this utility model;

[0053] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the diagram;

[0054] Figure 4 A schematic diagram of the connecting rod structure of an internal hole grinding device provided in an embodiment of this utility model;

[0055] Figure 5 A schematic diagram of the linkage slide structure of an internal hole grinding device provided in this embodiment of the utility model;

[0056] Figure 6 A schematic cross-sectional view of the rotating frame of an internal hole grinding device provided in an embodiment of this utility model.

[0057] Explanation of reference numerals in the attached figures:

[0058] 1. Automotive motor housing; 101. Support frame; 2. Lifting electric push rod; 201. Support rod; 202. Rotating frame; 203. Connecting rod; 204. Connecting seat; 205. Grinding rod; 206. Mounting frame; 207. Drive motor; 208. Linkage gear; 209. Driven gear; 210. Fixed ring; 3. Hemispherical gear one; 301. Hemispherical gear two; 302. Connecting shaft; 4. Linkage slide; 401. Linkage rod; 402. Connecting ring; 403. Auxiliary electric push rod; 404. Mounting seat; 405. Central shaft; 406. Linkage shaft; 407. Movable gear; 408. Arc-shaped toothed plate; 409. Annular groove; 410. Limiting ring. Detailed Implementation

[0059] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0060] Example 1:

[0061] like Figures 1 to 6 As shown, this utility model provides an internal hole grinding device, including: an automobile motor housing 1 and a support frame 101 movably mounted on the automobile motor housing 1 for supporting the automobile motor housing 1, a grinding structure arranged on the support frame 101 for grinding the internal hole of the automobile motor housing 1, and a linkage structure arranged on the grinding structure for controlling the rotation of the grinding components of the grinding structure.

[0062] The grinding structure includes a lifting electric push rod 2 arranged above the support frame 101, a support rod 201 arranged on the output end of the lifting electric push rod 2, a rotating frame 202 rotatably sleeved on the support rod 201, two connecting rods 203 rotatably mounted on the rotating frame 202, a connecting seat 204 rotatably mounted between the two connecting rods 203, a grinding rod 205 rotatably mounted below the connecting seat 204, and a drive assembly arranged on the rotating frame 202 for controlling the rotation of the rotating frame 202. By driving the lifting electric push rod 2, the support rod 201 is controlled to descend, causing the grinding rod 205 to move to the inner hole of the automobile motor housing 1 and contact the inner hole wall of the automobile motor housing 1. By controlling the drive assembly, the grinding rod 205 can be driven to rotate in the inner hole of the automobile motor housing 1 to grind the inner hole.

[0063] Specifically, the drive assembly includes a mounting bracket 206 fixedly sleeved on the support rod 201, a drive motor 207 arranged above the mounting bracket 206, a linkage gear 208 arranged on the output end of the drive motor 207, and a driven gear 209 arranged above the rotating frame 202 for transmission. The driven gear 209 meshes with the linkage gear 208. When the drive motor 207 is turned on, it drives the linkage gear 208 to rotate. When the linkage gear 208 rotates, it can drive the rotating frame 202 to rotate through meshing with the driven gear 209. This causes the rotating frame 202 to drive the connecting rod 203 to rotate. The rotating rod 203 will drive the connecting seat 204, the grinding rod 205, the linkage rod 401, and the linkage slide 4 to rotate. The rotating grinding rod 205 will grind the inner hole of the car motor housing 1.

[0064] Example 2:

[0065] Based on Embodiment 1, in order to prevent the position of the rotating frame 202 from shifting from that of the support rod 201, the grinding structure also includes a fixing ring 210 fixedly sleeved on the support rod 201 to limit the rotation position of the rotating frame 202. The fixing ring 210 is rotatably installed inside the rotating frame 202. When the rotating frame 202 rotates, it will rotate on the fixing ring 210. The fixing ring 210 can prevent the position of the rotating frame 202 from shifting from that of the support rod 201.

[0066] Specifically, the linkage structure includes a hemispherical gear 3 fixedly sleeved on one end of the support rod 201, a hemispherical gear 301 rotatably installed on one side of the connecting seat 204, the hemispherical gear 301 meshing with the hemispherical gear 3, and a connecting shaft 302 arranged between the hemispherical gear 301 and the grinding rod 205. During the circular motion of the connecting seat 204, the hemispherical gear 301 will be driven to perform circular motion around the hemispherical gear 3.

[0067] During operation, hemispherical gear 3 rotates by meshing with hemispherical gear 301, so that the grinding rod 205 can rotate while moving around the support rod 201, thus improving the grinding effect.

[0068] Example 3:

[0069] Based on Embodiment 2, in order to facilitate the adjustment of the angle of the grinding rod 205 so that it can fit the inclined surface of the inner hole of the automobile motor housing 1, an angle adjustment structure for adjusting the angle of the grinding structure is arranged on the grinding structure.

[0070] The angle adjustment structure includes a linkage slide 4 slidably sleeved on the support rod 201, a linkage rod 401 rotatably mounted on one side of the linkage slide 4, one end of the linkage rod 401 rotatably mounted on the connecting rod 203, a connecting ring 402 rotatably mounted below the linkage slide 4, an auxiliary electric push rod 403 with its output end arranged on the connecting ring 402 for controlling the lifting and lowering movement of the connecting ring 402, a mounting seat 404 fixedly sleeved on the support rod 201 and arranged below the auxiliary electric push rod 403 for supporting the auxiliary electric push rod 403, and a flipping component arranged on the connecting seat 204 for controlling the flipping of the connecting seat 204. When the auxiliary electric push rod 403 is turned on, its output end can drive the connecting ring 402 to slide on the support rod 201, so that the connecting ring 402 and the linkage slide 4 can lift and lower. The moving linkage slide 4 can drive one end of the connecting rod 203 to flip through the linkage rod 401, thereby driving the connecting seat 204 and the grinding rod 205 to flip.

[0071] Specifically, the flipping assembly includes a central shaft 405 arranged on the rotating frame 202 and rotatably installed inside the connecting rod 203 as the fulcrum of the connecting rod 203; a linkage shaft 406 arranged on one side of the connecting seat 204 and rotatably installed at one end of the connecting rod 203; a movable gear 407 arranged at one end of the linkage shaft 406; and an arc-shaped toothed plate 408 arranged on one side of the rotating frame 202. The arc-shaped toothed plate 408 meshes with the movable gear 407. The central shaft 405 and the first hemispherical gear 3 are located on the same axis. The flipping connecting seat 204 can drive the movable gear 407 to move around the arc-shaped toothed plate 408 in a circular motion, so that the movable gear 407 rotates by meshing with the arc-shaped toothed plate 408, thereby driving the connecting seat 204 to rotate and changing the angle between the grinding rod 205 and the second hemispherical gear 301. When the angle of the second hemispherical gear 301 changes, it will maintain a meshing state with the first hemispherical gear 3.

[0072] The angle adjustment structure also includes an annular groove 409 inside the linkage slide 4 and a limiting ring 410 arranged on one side of the connecting ring 402. The limiting ring 410 is rotatably installed inside the annular groove 409. When the linkage slide 4 rotates, it can rotate on the limiting ring 410 through the annular groove 409. The setting of the annular groove 409 and the limiting ring 410 can prevent the linkage slide 4 from separating from the connecting ring 402. When the connecting ring 402 moves up and down, it can drive the linkage slide 4 to move up and down through the cooperation of the annular groove 409 and the limiting ring 410.

[0073] Working principle:

[0074] In use, the car motor housing 1 is placed on the support frame 101, with the inner hole of the car motor housing 1 aligned with the grinding rod 205. Then, the support rod 201 is lowered by driving the lifting electric push rod 2, causing the grinding rod 205 to move to the inner hole of the car motor housing 1 and contact the inner wall of the car motor housing 1. At this time, the drive motor 207 is turned on to drive the linkage gear 208 to rotate. When the linkage gear 208 rotates, it can drive the rotating frame 202 to rotate through meshing with the driven gear 209. This causes the rotating frame 202 to drive the connecting rod 203 to rotate in a circular motion. The circular motion of the connecting rod 203 will drive the connecting seat 204, the grinding rod 205, the linkage rod 401, and the linkage slide 4 to rotate in a circular motion. When the slide block 4 rotates, it can rotate on the limiting ring 410 through the annular groove 409. The grinding rod 205, which moves in a circular motion, will rub against the inner hole of the car motor housing 1 to grind the inner hole of the car motor housing 1. During the circular motion of the connecting seat 204, it will drive the second hemispherical gear 301 to move in a circular motion around the first hemispherical gear 3. The first hemispherical gear 3 will rotate by meshing with the second hemispherical gear 301, so that the second hemispherical gear 301 drives the grinding rod 205 to rotate through the connecting shaft 302. This allows the grinding rod 205 to rotate on its own axis while moving in a circular motion around the support rod 201, thereby improving the grinding effect of the grinding rod 205 on the inner hole of the car motor housing 1.

[0075] By changing the angle of the grinding rod 205 so that it fits against the inclined surface of the inner hole of the motor housing for grinding, and the angle of the second hemispherical gear 301 changes, it will remain engaged with the first hemispherical gear 3. Thus, after the drive motor 207 is turned on, the grinding rod 205 with the changed angle can still achieve the effect of self-rotation grinding.

[0076] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An internal hole grinding device, characterized in that, include: Automotive motor housing (1); The support frame (101) is movably mounted on the car motor housing (1) to support the car motor housing (1). A grinding structure, arranged on a support frame (101), is used for grinding the inner hole of the automobile motor housing (1); A linkage structure, arranged on the grinding structure, is used to control the rotation of the grinding components of the grinding structure; An angle adjustment structure is arranged on the grinding structure to adjust the angle of the grinding structure.

2. The internal hole grinding device as described in claim 1, characterized in that, The grinding structure includes: The lifting electric push rod (2) is connected to the support frame (101); Support rod (201) is installed at the output end of lifting electric push rod (2); The rotating frame (202) is rotatably mounted on the support rod (201); Both connecting rods (203) are rotatably mounted on the rotating frame (202); A connecting seat (204) is rotatably mounted between the two connecting rods (203), and a grinding rod (205) is arranged below the connecting seat (204). A drive assembly for controlling the rotation of the rotating frame (202) is also arranged on the rotating frame (202).

3. The internal hole grinding device as described in claim 2, characterized in that, The driving component includes: The mounting bracket (206) is fixedly sleeved on the support rod (201); The drive motor (207) is arranged above the mounting bracket (206); The linkage gear (208) is arranged on the output end of the drive motor (207); Driven gear (209) is arranged above rotating frame (202). Driven gear (209) meshes with linkage gear (208) for transmission.

4. The internal hole grinding device as described in claim 1, characterized in that, The grinding structure also includes a fixing ring (210), which is fixedly sleeved on the support rod (201). The fixing ring (210) is rotatably installed inside the rotating frame (202) to limit the rotation position of the rotating frame (202).

5. The internal hole grinding device as described in claim 1, characterized in that, The linkage structure includes: A hemispherical gear (3) is fixedly sleeved on one end of the support rod (201); Hemispherical gear two (301) is rotatably mounted on one side of the connecting seat (204), and hemispherical gear two (301) meshes with hemispherical gear one (3); The connecting shaft (302) is arranged between the hemispherical gear two (301) and the grinding rod (205).

6. The internal hole grinding device as described in claim 1, characterized in that, The angle adjustment structure includes: The linkage slide (4) is slidably sleeved on the support rod (201); Linkage rod (401) is rotatably mounted on one side of linkage slide (4). The connecting ring (402) is rotatably mounted below the linkage slide (4); An auxiliary electric push rod (403) is used to control the lifting and lowering movement of the connecting ring (402); The auxiliary electric push rod (403) is provided with a mounting base (404) for supporting the auxiliary electric push rod (403) below it, and the linkage rod (401) is rotatably mounted on the connecting rod (203).

7. The internal hole grinding device as described in claim 2, characterized in that, The connecting seat (204) is provided with a flipping component for controlling the flipping of the connecting seat (204).

8. The internal hole grinding device as described in claim 7, characterized in that, The flipping component includes: The central shaft (405) is arranged on the rotating frame (202) and rotatably installed inside the connecting rod (203), serving as the fulcrum for the rotation of the connecting rod (203); The linkage shaft (406) is arranged on one side of the connecting seat (204) and rotatably mounted on one end of the connecting rod (203); Among them, the central shaft (405) and the hemispherical gear (3) are located on the same axis.

9. The internal hole grinding device as described in claim 8, characterized in that, One end of the linkage shaft (406) is also provided with a movable gear (407), and an arc-shaped toothed plate (408) that meshes with the movable gear (407) is also provided on one side of the rotating frame (202).

10. The internal hole grinding device as described in claim 1, characterized in that, The angle adjustment structure also includes: An annular groove (409) is formed inside the linkage slide (4); A limiting ring (410) is arranged on one side of the connecting ring (402), and the limiting ring (410) is rotatably installed inside the annular groove (409).

Images